155351376643 has 4 divisors (see below), whose sum is σ = 155359282600. Its totient is φ = 155343470688.

The previous prime is 155351376581. The next prime is 155351376751. The reversal of 155351376643 is 346673153551.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 155351376643 - 2¹³ = 155351368451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155451376643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3923430 + ... + 3962827.

It is an arithmetic number, because the mean of its divisors is an integer number (38839820650).

Almost surely, 2^155351376643 is an apocalyptic number.

155351376643 is a deficient number, since it is larger than the sum of its proper divisors (7905957).

155351376643 is an equidigital number, since it uses as much as digits as its factorization.

155351376643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7905956.

The product of its digits is 3402000, while the sum is 49.

The spelling of 155351376643 in words is "one hundred fifty-five billion, three hundred fifty-one million, three hundred seventy-six thousand, six hundred forty-three".